islandora_scg.module

<?php

/**
 * @file
 * Placeholder module file for Islandora Sample Content Generator.
 */

/**
 * Implements hook_menu().
 */
function islandora_scg_menu() {
  $items = array();
  $items['admin/islandora/tools/islandora_scg'] = array(
    'title' => 'Islandora Sample Content Generator',
    'description' => 'Load sample objects into your repository.',
    'access arguments' => array('generate sample Islandora content'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('islandora_scg_generate_form'),
    'file' => 'includes/generate.form.inc',
  );
  $items['islandora_scg_load_progress'] = array(
    'title' => 'Progress bar progress',
    'page callback' => 'islandora_scg_progress_bar',
    'type' => MENU_CALLBACK,
    'access arguments' => array('generate sample Islandora content'),
    'file' => 'includes/generate.form.inc',
  );
  return $items;
}

/**
 * Implements hook_theme().
 */
function islandora_scg_theme() {
  return array(
    'islandora_scg_metadata_ds' => array(
      'variables' => array(
        'metadata' => NULL,
      ),
      'template' => 'theme/islandora_scg_metadata_ds',
    ),
  );
}

/**
 * Implements hook_permission().
 */
function islandora_scg_permission() {
  return array(
    'generate sample Islandora content' => array(
      'title' => t('Generate sample Islandora content'),
      'description' => t('Generate sample objects using the Islandora Sample Content Generator'),
    ),
  );
}

/**
 * Implements hook_preprocess_theme().
 */
function islandora_scg_preprocess_islandora_scg_metadata_ds(array &$variables) {
  // Read the sample metadata file.
  $sample_metadata = &drupal_static(__FUNCTION__);
  if (!isset($sample_metadata)) {
    $path = $variables['metadata_file'];
    $sample_metadata = file($path);
  }
  // Grab a random row from the sample metadata file.
  $random_line_number = array_rand($sample_metadata);
  $metadata = explode("\t", $sample_metadata[$random_line_number]);

  // Populate the singleton and repeatable variables.
  $variables['title'] = htmlspecialchars($metadata[0]);
  $variables['date_issued'] = htmlspecialchars($metadata[1]);

  $place_names = explode(';', $metadata[2]);
  $variables['geographics'] = array();
  foreach ($place_names as &$place_name) {
    $place_name = trim($place_name);
    $place_name = htmlspecialchars($place_name);
    $variables['geographics'][] = $place_name;
  }

  $topics = explode(';', $metadata[3]);
  $variables['topics'] = array();
  foreach ($topics as &$topic) {
    $topic = trim($topic);
    $topic = htmlspecialchars($topic);
    $variables['topics'][] = $topic;
  }

  $variables['abstract'] = htmlspecialchars(trim($metadata[4]));
  unset($variables['metadata_file']);
}

/**
 * Form submit handler.
 */
function islandora_scg_generate_form_submit($form, &$form_state) {
  $_SESSION['islandora_scg_num_objects_generated'] = 0;
  $_SESSION['islandora_scg_num_objects_to_generate'] = $form_state['values']['islandora_scg_quantity'];

  module_load_include('inc', 'islandora_scg', 'includes/utilities');
  $cmodel = $form_state['values']['islandora_scg_cmodel'];
  $registry = islandora_scg_get_cmodel_associations();

  $path_to_metadata_file = drupal_get_path('module', 'islandora_scg') .
    DIRECTORY_SEPARATOR . 'includes' . DIRECTORY_SEPARATOR . 'sample_metadata.tsv';
  $path_to_data_dir = file_directory_temp() . DIRECTORY_SEPARATOR . 'islandora_scg';

  $options = array(
    'quantity' => $form_state['values']['islandora_scg_quantity'],
    'content_model' => $form_state['values']['islandora_scg_cmodel'],
    'parent' => $form_state['values']['islandora_scg_collection'],
    'namespace' => $form_state['values']['islandora_scg_namespace'],
    'bgcolor' => $form_state['values']['islandora_scg_color'],
    'metadata_file' => $path_to_metadata_file,
    'timer' => FALSE,
    'load_content' => TRUE,
    'data_dir' => $path_to_data_dir,
  );

  $generator = new $registry[$cmodel]['class']($options);
  $generator->createDataDir();
  $generator->generateContent();
  $generator->loadContent();
  $generator->removeDataDir();

  // Sadly, this does not appear on the form, it appears when
  // you visit the selected collection.
  drupal_set_message(t('!num sample objects loaded.', array('!num' => $form_state['values']['islandora_scg_quantity'])));
}